Daikin EKHHP300AA2V3 Installation And Operating Instructions Manual

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Installation and operating instructions12DAIKIN EKHHP(3/5)00AA2V3DAIKIN Hot water heat pump008.1423444_05 – 08/20164 x Set-up and installation● Carefully insulate pipe lines against heat loss and so as toavoid the formation of condensation (insulation thickness atleast 20 mm).● Connect the drain hose to the connector for the safetyoverflow (Fig. 4-6 to Fig. 3-1, Item 23).– Use transparent drain hose (draining water must be visi-ble).– Connect the drain hose to an adequately dimensionedwaste water installation.– Drain should not be lockable.4.4.1 Optional: Connection of an external heatgeneratorFor support or as an alternative for heating by the heat pump youcan connect external heat generators (e.g. Solar, gas or oil boiler)to the DAIKIN EKHHP.The heat supplied by the external heat generator must be addedto the unpressurised storage tank water in the DAIKIN EKHHPhot water storage tank.● Carry out hydraulic connection in accordance with one of thetwo following possibilities:a) EKHHP(3/5)00AA2V3: unpressurised viaconnections (solar infeed and solar return) of the hotwater tankorb) Only EKHHP500AA2V3: via the integratedpressurised solar heat exchanger.– Fig. 3-1 and Tab. 3-1 give the position and dimensions ofthe connections.– CArry out hydraulic system incorporation in accordancewith Fig. 4-5.– Pay attention to the stipulated tightening torque (seeSection 4.1).– Design the lines as such that the sound attenuation cowlcan be applied without any problem following assembly.Fig. 4-5 Hydraulic connection - legend see Tab. 4-2(Example EKHHP500AA2V3 with Solar and optional ex-ternal heat generator)1 Cold water connection2 Hot water distribution network3 Feed Solar or for other heat source*4 Return Solar or for other heat source*6 Circulation7 Customer's side: Check valve, return valve7a Circulation brakes (2 in number) Recommended accessory8a Feed Solar or for other heat source*8b Return Solar or for other heat source*9 Gas line (refrigerant)10 Liquid line (refrigerant)CW cold waterDHWhot waterEKHHPDAIKIN heat pump internal unitEKSRPS4ADAIKIN solar regulation and pump unit*FLG FlowGuard - solar regulating valve with flow indicator*ERWQDAIKIN Heat pump external unitFLS FlowSensor - solar flow and feed temperature measurementPK Boiler circulation pump*PZ Circulation pump*SK Solar panel field*SV Customer's side: Safety over-pressure valveWEX External heat generator** OptionalTab. 4-2 Legend for Fig. 4-5Fig. 4-6 Installation of drain hose at safety overflow